(19)
(11) EP 1 324 465 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.06.2005 Bulletin 2005/25

(43) Date of publication A2:
02.07.2003 Bulletin 2003/27

(21) Application number: 02258614.3

(22) Date of filing: 13.12.2002
(51) International Patent Classification (IPC)7: H02K 29/08, H02K 5/167
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 21.12.2001 GB 0130602

(71) Applicant: JOHNSON ELECTRIC S.A.
2300 La Chaux-de-Fonds (CH)

(72) Inventors:
  • Strobl, Georg, c/o Johnson Engineering GmbH
    70771 Leinfelden-Echterdingen (DE)
  • Blase, Benno, c/o Johnson Engineering GmbH
    70771 Leinfelden-Echterdingen (DE)
  • Tennoun, Michel, c/o Johnson Engineering GmbH
    70771 Leinfelden-Echterdingen (DE)

(74) Representative: Bailey, Richard Alan 
Marks & Clerk, 27 Imperial Square
Cheltenham, GL50 1RQ
Cheltenham, GL50 1RQ (GB)

   


(54) An electric motor


(57) An electric motor comprises a stator 13, a rotor 11, windings on the stator, a sleeve 15 at one end of the motor for supporting or defining a bearing for the rotor and for attachment to a fuel pump. The sleeve 15 forms the sole means of aligning the rotor 11 and an impeller of the pump. The motor may be a brushless D.C. motor having sensors for sensing the position of the rotor relative to the stator, electronic circuitry for switching the current in the windings in response to outputs from the sensors so as to cause the rotor to rotate relative to the stator.






Search report